Engine installation for ships.



A. BfiOHI.

ENGINE INSTALLATION FOR SHIPS.

APPLICATION FILED MAY 22, 1912.

INVENTOI? 2 SHEETS-SHEET l.

Patented Jan. 21, 1913.

WITNESSES %Q v AITOIM/EY A. BUGHI.

ENGINE INSTALLATION FOR SHIPS.

APPLIOATION FILED MAY 22,1912.

Patented Jan. 21, 1913.

msm n '2 SHEETS-SHEET 2.

1/ mvmroe w 8 8 M n w ATTORNEY sans PATE FFIOE.

ALFRED IBUCHI, OF WINTERTHUR, SWITZERLAND, ASSIGNOIR, TO BUSCH-SULZER BB-0S3 DIESEL ENGINE COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF MISSOURI.

ENGINE INSTALLATION FOR SHIPS.

Specification of Letters Patent.

atented Jan. 21, 1913.

Application filed May 22, 1912. Serial No. 699,068.

To all whom it may concern:

Be it known that T, ALFRED Biiontr, engineer, a citizen of the Republic of Switzerland, and a resident of Winterthur, Canton of Zurich, Switzerland, have'invented cer tain new'and nuseful Improvements in Engine Installation for Ships, as hereinbelow described.

This invention relates more particularly to the constitution and arrangement of marine power plants for ship drive, the object being to provide a mixed drive, whereby certain advantages are attained in the way of flexibility of operation together with the ability to run advantageously on different kinds of fuel. At different times and places and by reason of various conditions, as inflammability of cargo, labor strikes and disablementof driving machinery, one kind of fuel may be unduly expensive, unattainable, useless, or otherwise undesirable, and the ability to operate with a difi'erent kind of fuel would then be of the greatest advantage. Thus, it is extremely desirable that a vessel be able to develop power for propulsion either with coal or oil or both. This may be accomplished by adapting a steam plant to use oil as well as coal, and in fact such an arrangement is herein included as an ancillary feature; but primarily the present invention attains the desired result, more advantageously, by providing one or more engines specially adapted to develop power economically from the li uid part of the fuel supply, steam engines 0 a type well suited to combine with these oil motors being also provided to utilize the energy stored in the solid part of the fuel supply. Accordingly two-cycle Diesel engines, or like suit able constant pressure combustion engines and steam turbines are combined'with the propellers in such manner that the vessel may be driven by either or both of the power plants. To complete the adaptability of the vessel thus equipped to all conditions that may arise, the steam-boiler installation is fitted to burn oil as well as coal, and a valved connection is provided between the oil tanks supplying the Diesel engines and this steamboiler installation. In addition .to the ability thus attained of selecting the fuel in accordancewith conditions of market price, availability, etc.-, a material advantage is of the motors.

vantages with reference to different situatrons. Thus, the Diesel engines, alone, or in con unction with the steam turbines, may be used for quick runs, and the steam drive alone may be used for slower speeds. The combination of Diesel engines and steam turblnes as an economical and efiective mixed drive for vessels results in a still further possibility, herein availed of, in respect to interchangeable driving of the pumps for supplying the Diesel engines with air. The kinds of air thus supplied are air for scavenging the cylinders and for compression therein by the pistons, and air' (fuel air) for atomizing and injecting the liquid fuel into these bodies of compressed air in the cylinders. In accordance with this invention these pumps are arranged to. be driven either by the Diesel engines which they serve, or by the turbines, the Diesel engines thus being left free to develop their greatest power, or by both jointly. To this end, the pump is preferably arranged between the Diesel engine and turbine pertaining to a propeller shaft, in line with all of these, and connections are provided whereb the pump may be coupled to either or botli When the turbine alone drives the'pump it is disconnected from the propeller shaft, which is driven by the Diesel engine. Ur the pump may be disconnected from the turbine and connected to the Diesel engine, which drives both the propeller shaft and its pump. Finally, the turbine may be connected to the propeller shaft through the pump, in which event the Diesel engine and pump may either be working or driven idly by the rbine.

Among other features of the invention are that of the isolation of the several installa tions, Diesel engines, turbines, and steamboiler, all in separate water-tight compartments.

In the accompanying drawings illustrating the invention by two of the preferred embodiments, the showing being somewhat diagrammatic: Figure l is a vertical longitudinal section through a vessel, showing side propellers are represented by the prodrive any desired machines peller shafts 1 and 2, and a middle ropeller by the shaft 3. The propeller sha ts 1 and '2 are shown driven by Diesel engines 4 and 5 directconnected thereto. These engines may have any suitable number of cylinders,

and their pumps, which may be direct connected with them, are indicated at 6 and 7. The construction and 'mode of operation of such engines are well understood, and detailed illustration and description are therefore unnecessary. The middle propeller shaft 3 is driven by a steam turbine 8 direct connected thereto. The Diesel engines 4 and 5 and the steam turbine 8 are located in separate water-tight compartments 9 and 10,

the turbine compartment 10 being prefer ably in advance of the compartment 9, and the shaft 3 accordingly extending farther forward than the shafts 1 and 2. In a third water-tight compartmentll, located in advance of the other two, isthe steam boiler installation 12, 12,-consisting of one or more furnaces and boilers of-any suitable or approved type.

turbine through a pipe 13; an the exhaust steam passes to a condenser 14, in which a for the Diesel engines may be located at the sides of the compartment 9, as indicated at 22 and 23. The steam-boiler furnace or furnaces in the compartmentll are constructed to burn oil as well as coal, in a manner which need' not be described. The coal bunkers are indicated at'24, 25, 26, 27, at the sides of .the'com a'rtment. A conduit 28 leads from the oi tank 22 to the compartment 11, where itterminates in the furnace or, furnaces with suitable devices (not shown) for introducing and burning the liquid fuel. This conduitis controlled by. a

- in icated.

by :1. Diesel engine 32 or by a steam turbine 33, or by both. In the preferred construc valve which is indicated at 29 and may be located at any suitable point.

, In the form of the invention'shown in Fi 3, two ro' ,Eac of these may be driven tion, each Diesel engine is drect connected to its propeller shaft, and the turbine is separate but co-axial therewith. Between the Diesel engine and the turbine, and also co-axial, is the pump 34, for supplying the The steam is supplied to the with the scaven ller shafts 30 and 31 are the pumps, the Diesel engines driving the propellers thus being relieved of the burden of the pumps. More0ver,-it is possible to reverse the movement of the vessel by reversing the Diesel'engines, and without reversing either the turbines or the pumps,

which, coupled together and uncoupled from the propeller shafts, may continue to mm in the same direction as before. Other desirable variations of drive are possible. The construction and arrangement of the Diesel engines and their um s need not be described or illustrates in (5 engines are well understood. The pumps may be two or three stage compressors, as desired. A conduit 37 is indicated for leading air under relatively low pressure to the receiver or manifoldBS, which is connected g orts suitably placedin the sides of t e cy inders of the engine. Lines for leading more highly com ressed air are indicated at 39, and devices f di controlling this air are indicated at 40. Such air thence passes by pi marked 41 lead' 1! to the fuel valves, int e tops of the severa.

etail, because these cylinders. The turbines are supplied with steam by the pipes 42 leading from the steam boiler installations 43, the latter consisting of one or more furnaces and boilers of any approved type. The internal combustion engine, steam turbine and steamboiler installations are all located in separate water-tight compartments, as in the case of Fig.1, and numbered 44, 45, 46, the compartment containing the Diesel engines being preferably. farthest aft and the steam boiler compartment farthest forward, with the steam turbine compartment between. In

the internal combustion engine com artment 44 may be located one or more mac es independent of the propeller shafts and of.

various characters, such as dynamos, bilgepumps, etc. One such machine is indicated at 47. Such machines are desirabl arranged between and co-axial with the iesel engines and the steam-en es, so as to be driven by either or both. t ereof, such auxiliary internal combustion and steam-engines being located respectively in the compartments 44, 45, reserved for internal comustion engine and steam-engine installations, For driving the machine 47 an auxiliary Diesel engine is .indicated at 48, in

the compartment 44, and asteam-engine 49,

in the compartment 45. Clutches or couplings 50 and 51 are provided for connectmg the driven machine with either or both of its motors. In addition, machines of any suitable character, dynamos, bilge-pumps, etc., may be arranged at the ends of the propeller shaft lines in the compartment 45. Two such machines are indicated at 52 and 53, clutches or couplings 54, 55 bein pro, vided for connecting them with or isconmeeting them from the turbine shafts. 56 is a condenser'receiving the exhaust from the steam turbines and kept at partial vacuum by suitable pum s indicated at 57 and driven in any suita le manner. The oil tanks 58 and 59 for containing the fuel for the Diesel engines may be located at opposite sides of their compartment 44, as in the case of Fi 1 and 2, and the furnace or furnaces 0 the steam-boiler installation are also adapted to burn oil as well as coal. The coal bunkers are indicated at 60, 61, 62, 63, at opposite sides of the compartment 46; and a conduit 64 controlled by a valve 65 leads from the oil tank 58 into the steamboiler compartment, where it is arranged to supply the furnaces with liquid fuel. Thus the steam part of the ropulsion may develop its power either rom coal or oil, or both, according to conditions.

While various features of construction, arrangement and operation of the invention have been described, various other features and capabilities will be appreciated by those skilled in the art..

What is claimed as new is:

1. In a Vessel, the combination with a propeller shaft, of a, Diesel engine and a steam turbine both in the shaft line, an air pump propeller shaft and forward of said Diesel engine, an air pump for serving the Diesel engine arranged between and in line with the Diesel engine and steam turbine, and detachable couplings between the pump. and the Diesel engine on the one hand and the steam turbine on the other..

3'. In a power-plant, the combination of a shaft to be driven, means for drivin the same comprising a Diesel engine an another motor in line with each other and with the shaft, an air pump and connections for supplying said Diesel engine with the air necessary for its operation as a constant pressure internal combustion en ne, and detachable couplings between sai pump and the, motors at opposite sides, whereby the shaft ma be driven by oneof said motors alone or y both jointly and the pump may be driven by the engine which it serves or by the other motor or by both. v

In-testimony whereof, I have slgned this specification 1n. the presence of two witnesses.

ALFRED BUGHI. Witnesses:

CARL Gunman, Aoeus'r Runes. 

